Alert archive / Pennsylvania / Special Weather Statements in 2017

Special Weather Statement, NWS State College, PA

February 12, 2017Cambria County, Pennsylvania

NWS State College, PA issued this special weather statement at Feb 12, 2017, 10:35 PM EST for Cambria County, Pennsylvania. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Feb 12, 2017, 10:35 PM EST (03:35 UTC)
Expired
Feb 12, 2017, 11:00 PM EST
In force
25 min
Issued by
NWS State College, PA

County Cambria County, PA

The radar

The State College radar (KCCX), 57 km from the middle of the area, began a volume at 03:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Pittsburgh, PA (KAGC), launched 00:00Z, 3.6 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2017-02-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2017-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 square meters per square second.1939587897117136156175Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
18 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
775 m above ground
0-6 km bulk shear
103 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this special weather statement went out at Feb 12, 10:26 PM EST, 9 minutes earlier.

Area forecast discussion, Feb 12, 10:26 PM EST, 9 minutes before
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Hazardous weather outlook, Feb 12, 9:26 PM EST, 1 hour 9 minutes before
Hazardous Weather Outlook
National Weather Service State College PA
926 PM EST Sun Feb 12 2017

PAZ036-056-057-059-063>066-140230-
Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-Lancaster-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 5 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ019-025>028-034-035-140230-
Southern Centre-Blair-Huntingdon-Mifflin-Juniata-Bedford-Fulton-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ012-018-037-041-042-140230-
Northern Clinton-Northern Centre-Tioga-Northern Lycoming-Sullivan-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ004-140230-
Warren-
926 PM EST Sun Feb 12 2017

...LAKE EFFECT SNOW WARNING IN EFFECT UNTIL 1 PM EST MONDAY...
...WIND ADVISORY IN EFFECT UNTIL 4 AM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.
   Lake Effect Snow Warning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Lake Effect Snow Warning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ024-033-140230-
Cambria-Somerset-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Winter Weather Advisory.
   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ017-140230-
Clearfield-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ006-010-011-140230-
Potter-Elk-Cameron-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ005-140230-
McKean-
926 PM EST Sun Feb 12 2017

...LAKE EFFECT SNOW ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...
...WIND ADVISORY IN EFFECT UNTIL 4 AM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Lake Effect Snow Advisory.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Lake Effect Snow Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ045-046-049>053-140230-
Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

PAZ058-140230-
Schuylkill-
926 PM EST Sun Feb 12 2017

...WIND ADVISORY IN EFFECT UNTIL 5 PM EST MONDAY...

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Feb 12, 8:46 PM EST, 1 hour 49 minutes before
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Local storm report, Feb 12, 8:48 PM EST, 1 hour 47 minutes before
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Local storm report, Feb 12, 9:15 PM EST, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
915 PM EST SUN FEB 12 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TSTM WND DMG     BLUE KNOB               40.35N  78.55W
02/12/2017                   BLAIR              PA   SOCIAL MEDIA

            TREES AND WIRES REPORTED DOWN NEAR BLUE KNOB.

&&

EVENT NUMBER CTP1700408

EVANEGO
Local storm report, Feb 12, 9:23 PM EST, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
923 PM EST SUN FEB 12 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0915 PM     TSTM WND DMG     HUNTINGDON              40.50N  78.01W
02/12/2017                   HUNTINGDON         PA   911 CALL CENTER

            TREES REPORTED DOWN COUNTYWIDE.

&&

EVENT NUMBER CTP1700409

EVANEGO
Local storm report, Feb 12, 10:32 PM EST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1032 PM EST SUN FEB 12 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0840 PM     TSTM WND DMG     BERLIN                  39.92N  78.95W
02/12/2017                   SOMERSET           PA   911 CALL CENTER

            TREES REPORTED DOWN.

0845 PM     TSTM WND DMG     BLUE KNOB               40.35N  78.55W
02/12/2017                   BLAIR              PA   SOCIAL MEDIA

            TREES AND WIRES REPORTED DOWN NEAR BLUE KNOB.

0915 PM     TSTM WND DMG     HUNTINGDON              40.50N  78.01W
02/12/2017                   HUNTINGDON         PA   911 CALL CENTER

            TREES REPORTED DOWN COUNTYWIDE.

0955 PM     TSTM WND DMG     MERCERSBURG             39.83N  77.90W
02/12/2017                   FRANKLIN           PA   911 CALL CENTER

            TREES REPORTED DOWN ACROSS SOUTHWESTERN FRANKLIN
            COUNTY.

&&

EVENT NUMBER CTP1700406 CTP1700408 CTP1700409 CTP1700410

EVANEGO
Special weather statement, Feb 12, 10:35 PM EST, 0 minutes before
Special Weather Statement
National Weather Service State College PA
1035 PM EST SUN FEB 12 2017

PAZ024-130400-
Cambria PA-
1035 PM EST SUN FEB 12 2017

...A SNOW SQUALL WILL AFFECT PARTS OF CAMBRIA COUNTY...

HAZARDS...A snow squall which can rapidly reduce visibility to less
than a quarter of a mile.

LOCATION AND MOVEMENT...At 1032 PM EST, a snow squall was moving
into northern Cambria county. This squall will remain over mainly
rural areas of northern Cambria County through 11 pm.

SAFETY INFO...
Use extra caution if you must travel into or through this squall.
Rapid changes in visibility and potentially slick roads are likely to
lead to accidents. Consider delaying travel until this squall passes
your location.

A rapid drop in temperature will lead to the rapid formation of black
ice on area roadways. Black ice is nearly impossible to see and
roadways may appear wet. Please use extreme caution, especially on
bridges, overpasses and around curves. Allow plenty of stopping
distance and avoid braking suddenly.

&&

LAT...LON 4072 7880 4073 7851 4070 7837 4065 7841
      4064 7844 4062 7845 4060 7844 4054 7848
      4052 7853 4047 7854 4053 7890
TIME...MOT...LOC 0332Z 317DEG 30KT 4086 7942 4059 7802

KF

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 12, 8:11 PM ESTSevere Thunderstorm WarningCTPBedford, Blair, Cambria, Somerset64 min
Feb 12, 8:59 PM ESTSevere Thunderstorm WarningCTPBedford, Fulton, Huntingdon61 min
Feb 12, 9:37 PM ESTSevere Thunderstorm WarningCTPFranklin53 min
Feb 12, 10:58 PM ESTSpecial Weather StatementCTPBlair32 min
Feb 12, 11:09 PM ESTSpecial Weather StatementCTPCambria36 min
Feb 12, 11:30 PM ESTSpecial Weather StatementCTPHuntingdon60 min
Feb 12, 11:38 PM ESTSpecial Weather StatementCTPClearfield22 min
Feb 13, 12:16 AM ESTSpecial Weather StatementCTPBedford, Franklin, Fulton29 min
Feb 13, 1:35 AM ESTSpecial Weather StatementCTPClearfield55 min

Nearby

Special Weather Statements in Pennsylvania, 2017Every special weather statement in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.